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What is the principal value of \(cosec^{-1}2\)?\(cosec^{-1}2\) का मुख्य मान क्या है?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: (\frac{\pi}{6})(\frac{\pi}{6})
\(cosec\frac{\pi}{6}=2\), so the principal value is \(\frac{\pi}{6}\). Think of \(cosec^{-1}x\) through \(\sin^{-1}\frac{1}{x}\).\(cosec\frac{\pi}{6}=2\), इसलिए मुख्य मान \(\frac{\pi}{6}\) है। \(cosec^{-1}x\) को \(\sin^{-1}\frac{1}{x}\) से जोड़कर सोचें।
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